package com.jianyun.jyzs.utils;


import android.annotation.TargetApi;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.support.annotation.NonNull;
import android.util.Log;


import com.jianyun.jyzs.constant.PinConstant;

import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Locale;

public class FileUtils {
    public static String getAttachDownloadDir(Context context) {
        boolean sdCardExist = Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);
        String path = "/sdcard";
        if (sdCardExist) {
            File file = Environment.getExternalStorageDirectory();
            path = file.getAbsolutePath();
            path = path + File.separator + PinConstant.PIN_ATTACH;
            File attachDir = new File(path);
            if (!attachDir.exists()) {
                attachDir.mkdir();
            }
        }
        return path;
    }

    public static String formatFileSize(long size) {
        long kb = 1024;
        long mb = kb * 1024;
        long gb = mb * 1024;

        if (size >= gb) {
            return String.format(Locale.getDefault(), "%.1f GB", (float) size / gb);
        } else if (size >= mb) {
            float f = (float) size / mb;
            return String.format(f > 100 ? "%.0f MB" : "%.1f MB", f);
        } else if (size >= kb) {
            float f = (float) size / kb;
            return String.format(f > 100 ? "%.0f KB" : "%.1f KB", f);
        } else
            return String.format(Locale.getDefault(), "%d B", size);
    }

    public static Bitmap decodeBitmapFromFile(String filePath, int reqWidth, int reqHeight) {
        final BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeFile(filePath, options);
        options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);
        options.inJustDecodeBounds = false;
        return BitmapFactory.decodeFile(filePath, options);
    }

    private static int calculateInSampleSize(BitmapFactory.Options options, int reqWidth, int reqHeight) {
        final int height = options.outHeight;
        final int width = options.outWidth;
        int inSampleSize = 1;
        if (height > reqHeight || width > reqWidth) {
            final int halfHeight = height / 2;
            final int halfWidth = width / 2;
            while ((halfHeight / inSampleSize) >= reqHeight && (halfWidth / inSampleSize) >= reqWidth) {
                inSampleSize *= 2;
            }
        }
        return inSampleSize;
    }

    /**
     * 专为Android4.4设计的从Uri获取文件绝对路径，以前的方法已不好使
     */

    @TargetApi(Build.VERSION_CODES.KITKAT)
    public static String getPath(final Context context, final Uri uri) {

        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;

        // DocumentProvider
        if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
            // ExternalStorageProvider
            if (isExternalStorageDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                if ("25DA-14E4".equalsIgnoreCase(type)) {
                    return Environment.getExternalStorageDirectory() + "/"
                            + split[1];
                }else if ("primary".equalsIgnoreCase(type)) {
                    return Environment.getExternalStorageDirectory() + "/"
                            + split[1];
                }

            }
            // DownloadsProvider
            else if (isDownloadsDocument(uri)) {

                final String id = DocumentsContract.getDocumentId(uri);
                final Uri contentUri = ContentUris.withAppendedId(
                        Uri.parse("content://downloads/public_downloads"),
                        Long.valueOf(id));

                return getDataColumn(context, contentUri, null, null);
            }
            // MediaProvider
            else if (isMediaDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                Uri contentUri = null;
                if ("image".equals(type)) {
                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                } else if ("video".equals(type)) {
                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                } else if ("audio".equals(type)) {
                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                }

                final String selection = "_id=?";
                final String[] selectionArgs = new String[]{split[1]};

                return getDataColumn(context, contentUri, selection, selectionArgs);
            }
        }
        // MediaStore (and general)
        else if ("content".equalsIgnoreCase(uri.getScheme())) {
            return getDataColumn(context, uri, null, null);
        }
        // File
        else if ("file".equalsIgnoreCase(uri.getScheme())) {
            return uri.getPath();
        }

        return null;
    }

    /**
     * Get the value of the data column for this Uri. This is useful for
     * MediaStore Uris, and other file-based ContentProviders.
     *
     * @param context       The context.
     * @param uri           The Uri to query.
     * @param selection     (Optional) Filter used in the query.
     * @param selectionArgs (Optional) Selection arguments used in the query.
     * @return The value of the _data column, which is typically a file path.
     */
    private static String getDataColumn(Context context, Uri uri,
                                        String selection, String[] selectionArgs) {

        Cursor cursor = null;
        final String column = "_data";
        final String[] projection = {column};

        try {
            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
            if (cursor != null && cursor.moveToFirst()) {
                final int column_index = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(column_index);
            }
        } finally {
            if (cursor != null)
                cursor.close();
        }
        return null;
    }

    private static boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri
                .getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is ExternalStorageProvider.
     */
    private static boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri
                .getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is MediaProvider.
     */
    private static boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri
                .getAuthority());
    }

    /**
     * 将图片写入sd卡
     *
     */
    public static  void inputPicTosdcard(Bitmap bitmap, String picName) {
        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos);

            File SDFile = Environment.getExternalStorageDirectory();
            File destDir = new File(SDFile.getAbsolutePath() + "/qqcyData/");//文件目录

            if (!destDir.exists()) {//判断目录是否存在，不存在创建
                destDir.mkdir();//创建目录
            }
            File pic = new File(destDir.getPath() + File.separator +picName);
            if (!pic.exists()) {
                try {
                    pic.createNewFile();//创建文件
                    FileOutputStream outputStream = new FileOutputStream(pic, true);
                    outputStream.write(baos.toByteArray());//写入内容
                    outputStream.close();//关闭流
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
    public static File byte2File(byte[] buf, String filePath, String fileName) {
        BufferedOutputStream bos = null;
        FileOutputStream fos = null;
        File file = null;

        try {
            File dir = new File(filePath);
            if(!dir.exists()) {
                Log.d("file", "byte2File: dir does not exist!");
                dir.mkdirs();
            }

            file = new File(dir.getPath() + File.separator + fileName);
            fos = new FileOutputStream(file);
            bos = new BufferedOutputStream(fos);
            bos.write(buf);
        } catch (Exception var19) {
            var19.printStackTrace();
            Log.e("file", "byte2File: Exception!");
        } finally {
            if(bos != null) {
                try {
                    bos.close();
                } catch (IOException var18) {
                    var18.printStackTrace();
                }
            }

            if(fos != null) {
                try {
                    fos.close();
                } catch (IOException var17) {
                    var17.printStackTrace();
                }
            }

        }

        return file;
    }

    public static String getInternalCachePath(Context context, @NonNull String dir) {
        File cacheDir = new File(context.getCacheDir().getPath() + File.separator + dir);
        if(!cacheDir.exists()) {
            boolean result = cacheDir.mkdir();
            Log.w("fiel", "getInternalCachePath = " + cacheDir.getPath() + ", result = " + result);
        }

        return cacheDir.getPath();
    }

}
